theorem Th15: :: NDIFF12:15
for E, F, G being RealNormSpace
for f being Lipschitzian BilinearOperator of E,F,G holds
( f `| ([#] [:E,F:]) is Lipschitzian LinearOperator of [:E,F:],(R_NormSpace_of_BoundedLinearOperators ([:E,F:],G)) & f `| ([#] [:E,F:]) is_differentiable_on [#] [:E,F:] & f `| ([#] [:E,F:]) is_continuous_on the carrier of [:E,F:] & ( for z being Point of [:E,F:] holds diff ((f `| ([#] [:E,F:])),z) = f `| ([#] [:E,F:]) ) )